In a large saucepan over medium heat, combine the grape juice, cinnamon sticks, cloves, allspice and ginger. Bring to a simmer, then remove from the heat. Allow to cool to room temperature, at least 1 hour. Strain out and discard the seasonings, then transfer to a large pitcher or punch bowl and chill until cold. Once chilled, add the grapes and ginger beer or ale.